SK's chairman, Chey Tae-won, had been convicted for his part in an accounting fraud.

ECONOMIST: Freeing fat-cat felons creates moral hazard, Koreans fear

Mr Chey has had previous scrapes, having been convicted of a billion-dollar accounting fraud in 2003.

ECONOMIST: The Korea discount: Minority report | The

Chey stepped down as chairman of the conglomerate in December but stayed on as CEO of several companies.

FORBES: Convicted South Korean Billionaire May Be Headed To Jail, Again

The Federation of Korean Industries, a chaebol pressure group, has urged prosecutors to go easy on Mr Chey.

ECONOMIST: The Korea discount: Minority report | The

The drug works for only a subset of patients with IBS, says Dr. William Chey, director of the gastroenterology physiology laboratory at the University of Michigan Health System.

FORBES: Brains Over Guts

So, this week, there was the billionaire heir of the giant SK conglomerate, Chey Tae-won, back in the dock and, indeed, quickly in jail on an embezzlement finding.

FORBES: Asia's Week: The Koreans Take on the Spotlight

Chey Tae-won, the chairman of SK Group, was indicted in January over the disappearance of 99 billion won from company coffers, as part of a scheme allegedly planned by his brother to cover futures-trading losses.

ECONOMIST: The Korea discount: Minority report | The

Mr Chey denies the charges.

ECONOMIST: The Korea discount: Minority report | The